The Hill and Valley Wall Track encourages exploration at a young age. This sturdy track brings an intriguing pathway to toddler's eye level as they explore how balls and other rollers glide along the slopes. Children will also discover how the slopes affect speed while watching existing BRIO Train Cars, Hot Wheels and other small vehicles travel the track. At almost seven feet long, the Hill and Valley Wall Track brings an excellent prerequisite to a child's magnet wall.